B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K9/00—Arc welding or cutting
B23K9/20—Stud welding
B23K9/201—Stud welding of the extremity of a small piece on a great or large basis
B23K9/202—Stud welding of the extremity of a small piece on a great or large basis by means of portable equipment, e.g. stud welding gun